Module-3b: Offset and Flicker Mitigation 01 August 2018 14:29 - - PDF document

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module 3b offset and flicker mitigation
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Module-3b: Offset and Flicker Mitigation 01 August 2018 14:29 - - PDF document

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Module-3b: Offset and Flicker Mitigation 01 August 2018 14:29 Modules Page 1 Modules Page 2 Modules Page 3 If Y(f) is filtered, we get rid of flicker noise. Modules Page 4 Module-3c: Chopping Non-Idealities 06 September 2018 16:45 Open

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Module-3b: Offset and Flicker Mitigation

01 August 2018 14:29 Modules Page 1

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If Y(f) is filtered, we get rid of flicker noise.

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How is chopping different from phase-sensitive detection

  • How to implement the chopper?
  • What happens to in-band thermal noise floor?
  • How to pick chopping frequency?
  • Finite amplifier bandwidth and delay

○ Clock not 50% duty cycle ○ Switch non-idealities ○ Non-idealities

  • Open Questions

Module-3c: Chopping Non-Idealities

06 September 2018 16:45 Modules Page 1

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Fchop Fchop2 BW_signal < 0.5*F_chop2 << Fchop

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